CN206460118U - A kind of distribution line short circuit and earth fault analog simulation pilot system - Google Patents
A kind of distribution line short circuit and earth fault analog simulation pilot system Download PDFInfo
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- CN206460118U CN206460118U CN201720061019.6U CN201720061019U CN206460118U CN 206460118 U CN206460118 U CN 206460118U CN 201720061019 U CN201720061019 U CN 201720061019U CN 206460118 U CN206460118 U CN 206460118U
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Abstract
The utility model discloses a kind of short circuit of distribution line and earth fault analog simulation pilot system, the system includes low pressure feeder fault analog module, high pressure feeder fault analog module and comprehensive control module；The low pressure feeder fault analog module is connected with high pressure feeder fault analog module and comprehensive control module respectively；The high pressure feeder fault analog module and comprehensive control module connection.The technical scheme that the utility model is provided possesses compared with low capacity, with low pressure, high-voltage operation mode, simulation includes various short circuits and earth fault under the different earthing modes including arc grounding, the various dimensions failure operation scene flexible configuration including fault condition, fault type, trouble duration, abort situation is realized, the problem that actual distribution line failure high current is simulated under conditions of laboratory environment power supply capacity is limited is solved；Meet fault identification, route selection and the theoretical research of positioning, product development, performance detection and quality control needs.
Description
Technical field
The utility model is related to a kind of controller switching equipment experimental rig, in particular to a kind of distribution line short circuit and ground connection event
Hinder analog simulation pilot system.
Background technology
The power distribution automation equipment such as distribution power automation terminal, distribution line failure indicator are distribution network failure identifications with dividing
Analyse the important carrier of processing.Wherein the equipment such as distribution power automation terminal is carried out using distribution line secondary low-voltage electrical quantity parameter
Fault identification, and the equipment such as distribution line failure indicator is directly to carry out failure using high-tension electricity tolerance parameter of circuit to distinguish
Know.It is comprehensive assessment and this kind equipment of management and control in the product quality in stage of dispatching from the factory, supply and network, simulation distribution network failure operation
Scene is detected and verified to the fault identification ability of product.However, examining for security of distribution network and power supply reliability
Consider, the testing inspection of the kind equipment is carried out preferably in simulated environment.
Distribution network failure analogy method mainly has protection class device, the numerical model analysis of directly output analog quantity both at home and abroad at present
Analogue system, physical simulation system, true type analogue system etc..GPF (General Protection False class device is difficult to the simulation that output includes transient characteristic
Measure signal；The digital-to-analogue such as RTDS analogue system easily occurs band and carries distortion, it is impossible to simulate arc grounding failure；Scaled down physics mould
Plan system can not faults energy feature；Real model experiment system is difficult to realize that many operating conditions, multiple faults scene are adjusted flexibly,
It is big to outside system interference.
At this stage could not also be compared with low capacity, possessing all types of short circuit grounding failure high currents simulations of different earthing modes
Ability, while support that the various dimensions parameters such as fault condition, trouble duration, fault current size are flexibly adjustable, and can be true
Transient state, the distribution line failure analog simulation pilot system of stable state overall process operating condition during real reflection distribution line failure.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of short circuit of distribution line and earth fault
Analog simulation pilot system, compared with low capacity, distribution line short circuit grounding failure operation is simulated with low pressure, high-voltage operation mode
Scene, can simulate various fault types under different grounding modes, and fault condition, abort situation and failure continue
The various dimensions parameter such as time can flexibly be set, and fault current size is adjustable.
The utility model uses following technical proposals：
A kind of distribution line short circuit and earth fault analog simulation pilot system, it is characterised in that the system includes low
Press feeder fault analog module, high pressure feeder fault analog module and comprehensive control module；The low pressure feeder fault simulates mould
Block is connected with high pressure feeder fault analog module and comprehensive control module respectively；The high pressure feeder fault analog module and synthesis
Control module is connected.
Further, the low pressure feeder fault analog module includes：The power supply power transformation module that is sequentially connected, feeder clearance
Module and line load module；The fault simulation module being connected with feeder clearance module or line load module.
Further, the power supply power transformation module includes：Main transformer analogue unit, and respectively with main transformer simulate
Small resistor analogue unit, arc suppression coil analogue unit and high resistant analogue unit that unit is connected.
Further, the line load module includes：Line simulation unit and load simulation unit.
Further, the fault simulation module includes：Singlephase earth fault analog module and phase fault simulation
Module.
Further, the singlephase earth fault analog module includes：Singlephase earth fault output interface, and respectively with
The metallic earthing analogue unit of singlephase earth fault output interface connection, low-impedance earthed system analogue unit, high resistance ground simulation are single
Member, arc grounding analogue unit.
Further, the phase fault analog module, including phase fault output interface, and with it is alternate
Line to line fault analogue unit and three-phase shortcircuit analogue unit that short trouble output interface is connected.
Further, it is characterised in that singlephase earth fault output interface and phase fault output interface include：
The failure output interface being connected with feeder clearance module or line load module, the timer being connected with failure output interface.
Further, the high pressure feeder fault analog module includes：Boosting up-flow converter unit and high-voltage large current
Output loop.
Further, the comprehensive control module includes：Emulate case administrative unit, monitoring unit, recording unit, standard
External interface and database.
Compared with immediate prior art, the utility model has the advantages that：
1st, the technical scheme that provides of the present invention, which can be realized, simulates that distribution line is normal, short circuit with low pressure, high-voltage operation mode
With earth fault operating condition, can simulate including power network neutral point it is earth-free, connect through grounding through arc, through small resistor
Ground, through under the different earthing modes including high resistance ground, short trouble and metallic earthing, low resistance grounding, high resistance ground and
Arc grounding failure, solves the problem that actual distribution line failure high current is simulated under conditions of power supply capacity is limited.
2nd, the technical scheme that provides of the present invention can flexible configuration including fault type, failure duration, abort situation
Wait various dimensions failure operation scene, meet the functions such as the fault identification of electric first and second equipment and performance test requirement, and have
Standby batch testing ability, effectively improves power distribution network short circuit grounding Test to Failure detection efficiency, is at General Promotion distribution network failure
The verification experimental verification for managing correlation technique provides strong support.
Brief description of the drawings
Fig. 1 is module diagram of the present utility model；
Fig. 2 is structure connection diagram of the present utility model；
Fig. 3 is the structural representation of the utility model power supply power transformation module；
Fig. 4 is the structural representation of the utility model fault simulation module；
Fig. 5 is the internal structure connection diagram of the utility model arc grounding analogue unit.
Embodiment
The utility model is described in further details below in conjunction with the accompanying drawings.For make the utility model embodiment purpose,
Technical scheme and advantage are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, to the utility model embodiment
In technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the utility model,
Rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creation
Property work under the premise of all other embodiment for being obtained, belong to the scope of the utility model protection.
The distribution line short circuit of the utility model embodiment and the module diagram of earth fault analog simulation pilot system.
As shown in figure 1, fault simulation pilot system includes low pressure feeder fault analog module 1, high pressure feeder line analog module 2 and comprehensive control
Molding block 3.Its mesolow feeder fault analog module 1 simulates distribution according to the principle of similitude by low pressure physical analogue technique
Circuit accidental conditions, short circuit and earth fault operating condition, and provide low voltage experiment signal, high pressure to tested distribution terminal
Feeder fault analog module 2, is passed through by the normal or failure operation signal for generating low pressure feeder fault analog module and boosted
Up-flow link is transformed to that actual track is normal or failure operation signal, realizes that equivalent simulation occurs in distribution bus or distribution line
On it is normal, short-circuit with earth fault operating condition, and provide Hi-pot test signal to tested fault detector.
Comprehensive control module 3 is connected with low pressure feeder fault analog module 1 and high pressure feeder fault analog module 2 respectively,
Described low pressure feeder fault analog module and high pressure feeder fault analog module operation ginseng for gathering, monitoring, record, store
Number, and sample test response signal.
Fig. 2 is the short circuit of the utility model distribution line and the structure connection diagram of earth fault analog simulation pilot system
Embodiment.In the present embodiment, low pressure feeder fault analog module 1 includes power supply power transformation module 11, feeder clearance module 12, line
Road load blocks 13, fault simulation module 14.Wherein power supply power transformation module 11, feeder clearance module 12 and line load module 13
Electrical wiring be to be sequentially connected, fault simulation module 14 is electrically connected with line load module 13, for simulate occur it is online
Failure on road, fault simulation module 14 can also be electrically connected with feeder clearance module 12, occur for simulating in distribution wire
The failure of road bus.
Fig. 3 is the structural representation inside power supply power transformation module 11, and power supply power transformation module 11 is by main transformer analogue unit
111, and it is connected with the small resistor analogue unit 112, arc suppression coil analogue unit 113, high resistant analogue unit 114 that connect
Composition.By controlling the switching state of small resistor analogue unit, arc suppression coil analogue unit, high resistant analogue unit, it can simulate
It is corresponding through low resistance grounding, through the method for operation including grounding through arc and high resistance ground, if three ground connection analogue units
Do not put into, that is, simulate isolated neutral operation.Feeder clearance module 12, for analog bus, it is ensured that between each feed line
Gauge is from playing a part of collecting, distribute and transmitting electric energy.Line load module 13, including line simulation unit and load mould
Quasi-simple member.Wherein line simulation unit is made up of resistive, capacitive and inductive element, passes through the resistance of every analog line of packet assembling
The quantity that property, capacitive and inductive element put into operation, analog line parameter of the flexible modulation including impedance and admittance.
Fig. 4 is the structural representation of fault simulation module, and fault simulation module 14 includes singlephase earth fault analog module
141 and phase fault analog module 142.Wherein singlephase earth fault analog module 141 is exported including singlephase earth fault
Interface 1411, metallic earthing analogue unit 1412, low-impedance earthed system analogue unit 1413, high resistance ground analogue unit 1414, arc
Light is grounded analogue unit 1415；It is short that phase fault analog module 142 includes phase fault output interface 1421, two-phase
Road analogue unit 1422 and three-phase shortcircuit analogue unit 1423.Wherein singlephase earth fault and phase fault output interface by
Failure output interface concatenates a timer composition, and failure output interface is used to change failure generation position, can connect feeder line
Interval module, can also be connected with line load module, selected link block, be respectively used to the generation of simulated failure position
In distribution bus either distribution line.Timer, for controlling trouble duration, sets simulated failure to belong to instantaneity event
Barrier, or permanent fault.By controlling singlephase earth fault output interface and phase fault output interface break-make, selection
Simulated failure belongs to earth fault or short trouble.
High pressure feeder fault analog module includes boosting up-flow converter unit and high-voltage large current loop, for by described in
High-voltage great-current output loop is injected after the boosted up-flow converter unit of low pressure low current signal of low voltage failure analog module, etc.
Short circuit on distribution bus or distribution line and earth fault occur for effect simulation.
Low pressure low current signal can from line load module, power supply power transformation module and line load module or
It is feeder clearance module and line load module, carries out the distribution of accident analysis and processing using electric secondary signal for testing
Equipment.And high-voltage great-current signal, come from and distribution line operating condition is simulated in high-voltage operation mode, electricity is utilized for testing
Signal of gas carries out the controller switching equipment of accident analysis and processing.
Comprehensive control module includes emulation case administrative unit, monitoring unit, recording unit, standard external interface and data
Storehouse.Wherein emulation case administrative unit is used to set up emulation case；Monitoring unit respectively with described power supply power transformation module, feeder line
Interval module, line load module, fault simulation module, high pressure feed line module are connected, for controlling neutral grounding mode, tune
Whole distribution line parameter, selection fault type, regulation single-phase earth fault current size；Recording unit is exported with high-voltage great-current
Loop is connected, for record failure occur it is forward and backward during electrical quantity situation of change including voltage, current signal；Mark
Quasi- external interface, export and transmission for carrying out standard data and wave file；Database, for storing monitoring unit
With the response results of the data of recording unit generation, and equipment under test.
Fig. 5 is the embodiment of the internal structure connection diagram of the utility model arc grounding analogue unit, arc grounding
Analogue unit can be divided into two parts：One is static contact, and one piece of copper bar is fixed using an insulator, and copper bar one end connects
Earth fault point, the other end is hanging at a right angle；Another part is moving contact, and the spy of a rod iron material is installed on stepper motor
Pin, controllor for step-by-step motor passes through serial communication with comprehensive simulation unit.Send instructions control stepping electricity below comprehensive simulation unit
Machine slide unit the direction of motion and step-length, come the regulation in the gap of realizing dynamic static joint and static contact, so as to produce arc light.
Finally it should be noted that：Above example is merely to illustrate the technical scheme of the application rather than to its protection domain
Limitation, although the application is described in detail with reference to above-described embodiment, those of ordinary skill in the art should
Understand：Those skilled in the art read after the application the embodiment of application can still be carried out a variety of changes, modification or
Person's equivalent substitution, but these changes, modification or equivalent substitution, within the claims that application is given special approval to.
Claims (10)
1. a kind of distribution line short circuit and earth fault analog simulation pilot system, it is characterised in that the system includes low pressure
Feeder fault analog module, high pressure feeder fault analog module and comprehensive control module；The low pressure feeder fault analog module
It is connected respectively with high pressure feeder fault analog module and comprehensive control module；The high pressure feeder fault analog module and comprehensive control
Molding block is connected.
2. a kind of distribution line short circuit as claimed in claim 1 and earth fault analog simulation pilot system, it is characterised in that
The low pressure feeder fault analog module includes：Power supply power transformation module, feeder clearance module and the line load mould being sequentially connected
Block；The fault simulation module being connected with feeder clearance module or line load module.
3. a kind of distribution line short circuit as claimed in claim 2 and earth fault analog simulation pilot system, it is characterised in that
The power supply power transformation module includes：Main transformer analogue unit, and the small electricity being connected respectively with main transformer analogue unit
Hinder analogue unit, arc suppression coil analogue unit and high resistant analogue unit.
4. a kind of distribution line short circuit as claimed in claim 2 and earth fault analog simulation pilot system, it is characterised in that
The line load module includes：Line simulation unit and load simulation unit.
5. a kind of distribution line short circuit as claimed in claim 2 and earth fault analog simulation pilot system, it is characterised in that
The fault simulation module includes：Singlephase earth fault analog module and phase fault analog module.
6. a kind of distribution line short circuit as claimed in claim 5 and earth fault analog simulation pilot system, it is characterised in that
The singlephase earth fault analog module includes：Singlephase earth fault output interface, and respectively with singlephase earth fault export
The metallic earthing analogue unit of interface connection, low-impedance earthed system analogue unit, high resistance ground analogue unit, arc grounding simulation are single
Member.
7. a kind of distribution line short circuit as claimed in claim 5 and earth fault analog simulation pilot system, it is characterised in that
The phase fault analog module, including phase fault output interface, and with phase fault output interface
The line to line fault analogue unit and three-phase shortcircuit analogue unit being connected.
8. a kind of short circuit of distribution line and earth fault analog simulation pilot system as described in claim 6 or 7 is any, it is special
Levy and be, singlephase earth fault output interface and phase fault output interface include：With feeder clearance module or circuit
The failure output interface that load blocks are connected, the timer being connected with failure output interface.
9. a kind of distribution line short circuit as claimed in claim 1 and earth fault analog simulation pilot system, it is characterised in that
The high pressure feeder fault analog module includes：Boosting up-flow converter unit and high-voltage large current output loop.
10. a kind of distribution line short circuit as claimed in claim 1 and earth fault analog simulation pilot system, its feature exist
In the comprehensive control module includes：Emulate case administrative unit, monitoring unit, recording unit, standard external interface and data
Storehouse.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720061019.6U CN206460118U (en) | 2017-01-17 | 2017-01-17 | A kind of distribution line short circuit and earth fault analog simulation pilot system |
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| CN201720061019.6U CN206460118U (en) | 2017-01-17 | 2017-01-17 | A kind of distribution line short circuit and earth fault analog simulation pilot system |
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| CN206460118U true CN206460118U (en) | 2017-09-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748304A (en) * | 2017-09-23 | 2018-03-02 | 李景禄 | A kind of multifunctional ligand power network neutral earthing devices on-site calibrating method and instrument |
| CN108169610A (en) * | 2017-11-29 | 2018-06-15 | 国电南瑞科技股份有限公司 | A kind of one-phase earthing failure in electric distribution network test method based on Real Time Digital Simulator |
| CN108446441A (en) * | 2018-02-11 | 2018-08-24 | 中国电力科学研究院有限公司 | A kind of analogue system for analog current mutual inductor short trouble |
| CN109669103A (en) * | 2017-10-13 | 2019-04-23 | 中国电力科学研究院 | A kind of polymorphic complex fault analogue test platform of true type power distribution network and test method |
| CN110133489A (en) * | 2019-04-26 | 2019-08-16 | 国网湖北省电力有限公司电力科学研究院 | The simulated failure applying method of breaker singlephase earth fault on one or two fusion serial columns |
| CN111562519A (en) * | 2020-03-31 | 2020-08-21 | 中国电力科学研究院有限公司 | System and method for single-phase grounding simulation test of arc suppression coil complete device |
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2017
- 2017-01-17 CN CN201720061019.6U patent/CN206460118U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748304A (en) * | 2017-09-23 | 2018-03-02 | 李景禄 | A kind of multifunctional ligand power network neutral earthing devices on-site calibrating method and instrument |
| CN107748304B (en) * | 2017-09-23 | 2021-04-20 | 李景禄 | Multifunctional distribution network neutral point grounding device field calibration method and instrument |
| CN109669103A (en) * | 2017-10-13 | 2019-04-23 | 中国电力科学研究院 | A kind of polymorphic complex fault analogue test platform of true type power distribution network and test method |
| CN109669103B (en) * | 2017-10-13 | 2024-03-12 | 中国电力科学研究院 | Real type power distribution network multi-state complex fault simulation test platform and test method |
| CN108169610A (en) * | 2017-11-29 | 2018-06-15 | 国电南瑞科技股份有限公司 | A kind of one-phase earthing failure in electric distribution network test method based on Real Time Digital Simulator |
| CN108446441A (en) * | 2018-02-11 | 2018-08-24 | 中国电力科学研究院有限公司 | A kind of analogue system for analog current mutual inductor short trouble |
| CN110133489A (en) * | 2019-04-26 | 2019-08-16 | 国网湖北省电力有限公司电力科学研究院 | The simulated failure applying method of breaker singlephase earth fault on one or two fusion serial columns |
| CN110133489B (en) * | 2019-04-26 | 2021-01-08 | 国网湖北省电力有限公司电力科学研究院 | Simulated fault applying method and system for single-phase earth fault of primary-secondary fusion complete set of pole circuit breaker |
| CN111562519A (en) * | 2020-03-31 | 2020-08-21 | 中国电力科学研究院有限公司 | System and method for single-phase grounding simulation test of arc suppression coil complete device |
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